embarklabs
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neo-blessed
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This commit is contained in:
Christopher Jeffrey 2013-02-16 17:54:20 -06:00
parent 59cc5d73c3
commit fe2d881a08
2 changed files with 87 additions and 14 deletions
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2
example/tput.js
View File

@ -4,3 +4,5 @@ var tput = new Tput(process.argv[2] || 'xterm');
tput.colors();
console.log(tput.info);
tput._compile('%?%p9%t\u001b(0%e\u001b(B%;\u001b[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m');

99
lib/tput.js
View File

@ -303,22 +303,39 @@ Tput.prototype._compile = function(val) {
// CSI Ps ; Ps r
// CSI ? Pm r
var code = 'var dyn = {}, stat = {}, stack = [], out = []; out.push("';
//var code = 'var dyn = {}, stat = {}, stack = [], out = []; out.push("';
var ch, op, i;
var code = 'var v, dyn = {}, stat = {}, stack = [], out = []; function o(a){out.push(a);return a}'
, buff = '';
// man terminfo, around line 940
function b() {
if (buff) {
code += 'o("';
code += buff.replace(/([\r\n"])/g, '\\$1');
code += '")';
buff = '';
}
}
while (val) {
// '\e' -> ^[
if (cap = /^\\e/gi.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'o("';
code += '\x1b';
code += '")';
continue;
}
// '^A' -> ^A
if (cap = /^\^(.)/gi.exec(val)) { // case-insensitive?
b();
val = val.substring(cap[0].length);
ch = cap[1];
code += 'o("';
switch (ch) {
case '@':
code += '\x00';
@ -420,6 +437,7 @@ Tput.prototype._compile = function(val) {
code += '\x7f';
break;
}
code += '")';
continue;
}
@ -427,8 +445,10 @@ Tput.prototype._compile = function(val) {
// '\r' -> \r
// '\0' -> \200 (special case)
if (cap = /^\\([nlrtbfs\^\\,:0])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
ch = cap[1];
code += 'o("';
switch (ch) {
case 'n':
return '\n';
@ -454,30 +474,40 @@ Tput.prototype._compile = function(val) {
//return '\0';
return '\200';
}
code += '")';
continue;
}
// 3 octal digits -> character
if (cap = /^\\(\d\d\d)/g.exec(val)) {
b();
val = val.substring(cap[0].length);
ch = cap[1];
code += 'o("';
code += String.fromCharCode(parseInt(ch, 8));
code += '")';
continue;
}
// $<5> -> padding
if (cap = /^\$<(\d+)>(\*|\/)/g.exec(val)) {
b();
val = val.substring(cap[0].length);
ch = cap[1];
code += 'o("';
code += Array(+ch + 1).join(' '); // "padding" characters?
code += '")';
continue;
}
// man terminfo, around page 1034
// %% outputs `%'
if (cap = /^%%/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'o("';
code += '%';
code += '")';
continue;
}
@ -485,45 +515,62 @@ Tput.prototype._compile = function(val) {
// as in printf, flags are [-+#] and space. Use a `:' to allow the
// next character to be a `-' flag, avoiding interpreting "%-" as an
// operator.
if (cap = /^%(?:(:)?([\-+# ]+)?)(?:(\d+)(\.\d+)?)?([doxXs])?/g.exec(val)) {
if (cap = /^%(?:(:)?([\-+# ]+))(?:(\d+)(\.\d+)?)?([doxXs])?/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'o("';
code += 'TODO';
code += '")';
continue;
}
// %c print pop() like %c in printf
if (cap = /^%c/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'o(';
code += 'stack.pop()'; // TODO: FORMAT
code += ')';
continue;
}
// %d print pop() like %d in printf
// NOT SURE ABOUT %d being print!
if (cap = /^%d/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'o(';
code += 'stack.pop()'; // TODO: FORMAT
code += ')';
continue;
}
// %s print pop() like %s in printf
if (cap = /^%s/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'o(';
code += 'stack.pop()'; // TODO: FORMAT
code += ')';
continue;
}
// %p[1-9]
// push i'th parameter
if (cap = /^%p([1-9])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'params[i]';
i = cap[1];
//code += 'o(';
code += 'params[' + (i - 1) + ']';
//code += ')';
continue;
}
// %P[a-z]
// set dynamic variable [a-z] to pop()
if (cap = /^%P([a-z])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
v = cap[1];
code += 'dyn.' + v + ' = stack.pop()';
@ -533,6 +580,7 @@ Tput.prototype._compile = function(val) {
// %g[a-z]
// get dynamic variable [a-z] and push it
if (cap = /^%g([a-z])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
v = cap[1];
code += '(stack.push(dyn.' + v + '), dyn.' + v + ')';
@ -542,6 +590,7 @@ Tput.prototype._compile = function(val) {
// %P[A-Z]
// set static variable [a-z] to pop()
if (cap = /^%P([A-Z])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
v = cap[1];
code += 'stat.' + v + ' = stack.pop()';
@ -558,14 +607,16 @@ Tput.prototype._compile = function(val) {
// impact portability to other implementations.
if (cap = /^%g([A-Z])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
v = cap[1];
code += 'stack.push(stat.' + v + ')';
code += '(stack.push(v = stat.' + v + '), v)';
continue;
}
// %'c' char constant c
if (cap = /^%'(\w)'/g.exec(val)) {
b();
val = val.substring(cap[0].length);
ch = cap[1];
code += '"' + ch + '"';
@ -575,6 +626,7 @@ Tput.prototype._compile = function(val) {
// %{nn}
// integer constant nn
if (cap = /^%\{(\d+)\}/g.exec(val)) {
b();
val = val.substring(cap[0].length);
ch = cap[1];
code += '(' + ch + ')';
@ -583,8 +635,9 @@ Tput.prototype._compile = function(val) {
// %l push strlen(pop)
if (cap = /^%l/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += 'stack.push(stack.pop().length)';
code += '(stack.push(v = stack.pop().length), v)';
continue;
}
@ -595,17 +648,19 @@ Tput.prototype._compile = function(val) {
// %= %> %<
// logical operations: push(pop() op pop())
if (cap = /^%([+\-*\/m&|\^=><])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
op = cap[1];
if (op === '=') op = '===';
else if (op === 'm') op = '%';
code += 'stack.push(stack.pop() ' + op + ' stack.pop())';
code += '(stack.push(v = stack.pop() ' + op + ' stack.pop()), v)';
continue;
}
// %A, %O
// logical AND and OR operations (for conditionals)
if (cap = /^%([AO])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
op = cap[1];
code += op === ' A ' ? ' && ' : ' || ';
@ -615,14 +670,16 @@ Tput.prototype._compile = function(val) {
// %! %~
// unary operations (logical and bit complement): push(op pop())
if (cap = /^%([!~])/g.exec(val)) {
b();
val = val.substring(cap[0].length);
op = cap[1];
code += 'stack.push(' + op + 'stack.pop())';
code += '(stack.push(v = ' + op + 'stack.pop()), v)';
continue;
}
// %i add 1 to first two parameters (for ANSI terminals)
if (cap = /^%i/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += '(params[0]++, params[1]++)';
continue;
@ -644,26 +701,34 @@ Tput.prototype._compile = function(val) {
// written on one line. The -f option splits the string into lines with
// the parts indented.
if (cap = /^%\?/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += '"); if (';
//code += '"); if (';
code += 'if (';
continue;
}
if (cap = /^%t/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += ') { out.push("';
//code += ') { out.push("';
code += ') {';
continue;
}
if (cap = /^%e/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += '"); } else { out.push("';
//code += '"); } else { out.push("';
code += '} else {';
continue;
}
if (cap = /^%;/g.exec(val)) {
b();
val = val.substring(cap[0].length);
code += '"); } out.push("';
//code += '"); } out.push("';
code += '}';
continue;
}
@ -695,13 +760,19 @@ Tput.prototype._compile = function(val) {
// Then the same is done for the second parameter. More complex
// arithmetic is possible using the stack.
code += val[0];
buff += val[0];
val = val.substring(1);
}
code += '"); return out.join("");';
code += 'return out.join("");';
return new Function('params', code);
console.log(code.replace(/\x1b/g, '\\x1b'));
try {
return new Function('params', code);
} catch (e) {
console.log(e.message);
}
};
// Return alias if one exists.